Macular degeneration: ‘I’ve been given my sight back’

Lead is even more dangerous than previously realized

Looking back, it seems insane. Bluntly put, we took a known poison and – for three quarters of a century – used it in machines that puffed it out in breathable form. Then we drove them millions of miles a day, all over the world, regularly dosing billions of people with the toxin.

Contact lenses that deliver drugs directly to the eye win health care prize

The Next Big Thing in Aging? A “Hit-And-Run” Approach to Killing Harmful Cells